Honda Prelude 1993 Service Manual page 1375

Supplemental Restraint System (SRS)
Troubleshooting
Self-diagnosis Function
The SRS unit includes a selJ-diagnosis function. lf there
is a failure in the s€nsors, SRS unit, inflator, or their cir-
cuits, the SRS indicator light in the gauge assembly
goes ON.
SRS INDICATOR LIGHT
f::=
As a system check, the SRS indicator light also comes
on when the ignition is iirst turned to the ll oosition. lJ
the light goes otf after approximately six seconds, the
system is OK.
lf the SRS indicator light remains on (or fails to come on
in the system check model, one ot the SRS comDonents
(or the wiring/connectors in bgtween) is faultv.
Troubloshooting Procautions
a AlwSys uso ths test hamess. Do not us€ tast probgs
dirsctly on component connoctot tatminala ot wiros;
you m8y damsgo them or th€ SRS unit.
a Wh6n connecting any of th6 tsst hamoasos to the
system. push the connectors straight-in; do not bend
tho conn€ctot torminals.
a Boforo disconnacting any p8n ot tho SRS wire
ha.ness, install the short connector (RED) on the
driver's airbag. On csrs equipp€d with a front
passenger's airbag, instsll shon connoctols on the
driver's airbag and the front pass€ngor,s airbag,
SRS Indicator Light Troubloshooting
Possible conditions:
1. SRS indicator light does not come on at all _ see
page 23-3OO.
2. SRS indicator light stays on constantly - see page
23-304.
3. SRS indicator light comes on in combination with a
failure of another electrical system {brake system
light, malfunction indicator lamp (MlLl etc.). Check
for damage/corrosion at the under-dash fuse/relav
box connector.
NOTE:
a Before starting the applicable troubleshooting.
check the condition of all SRS connectors and
ground points,
a lf the fault is not found atter completing the ap-
plicable troubleshooting, substitute a known_
good SRS unit and check whether the indicator
light goes off.
23-298
Short Conn€ctor Installation
@
To avoid accidontat deploymont and
possible injury, always install the protective short con_
nectot on the drivel's ailbag connoctor and on cars
oquippod wlth flont paasengor,s airbag, install protac_
tivo short conn€ctots on thg drlver.a airbag and front
paaaonger's airbag bofore working near any SRS
wiring.
NOTE: The radio may have a s-digit coded theJ't pro-
tection circuit. Be sure to get the customer's code
number betore disconnecting the battery.
1. Oisconnect the battery negative cabl€, then
disconnect the positive cable.
2. Install the short connector(sl:
Driver's Side:
a Remove the access panel from the steering
wheel, th8n.emove the short connector (RED)
from the Danel.
DRIVER'S AIBBAG
3.P CONNECTOR
ACCESS PANEL
a Disconnect the connecto. between the driver's
airbag and cable reel, then install the short con-
n€ctor {RED} on the airbag side of the
connector.
Front Passenger's Side:
a Remove the glove box, then remove the short
connector (REDI from the holder.
a Disconnect the connector between the front
passenger's airbag and SRS main harness, then
install the short connector (RED) on the airbag
side of the connector (see page 23-295).